I received a new Maranta in March. Bought her on Etsy and wasn't happy that I purchased a heat pack, they shipped without it and she had obvious cold damage. However, once she got acclimated in her new home she perked up and has been vigorously putting out new leaves.
I put her in a self watering pot. The kind that is clay and the porous clay is supposed to absorb moisture from the clay basin it sits in. I used 50 African violet soil 50 perlite. She sits not in front of, but directly next to a north facing picture window. I water her with reverse osmosis water or bottled purified water. I add diluted Dyna-Gro 7-9-5 to her waterings. I'm not sure if she could absorb it through the self water clay pot 🤷♀️
May 11.. I noticed a leaf turn yellow. Quickly. Like over night. And I noticed fuzzy mold on top of her soil. 😢 Since then 4 more leaves and a fifth leaf is yellowing now. It's crazy how fast. I wake up and check on her and she's beautiful, then come evening time (the same day) and it's a complete yellow leaf. I did repot her 2 days ago. In a regular pot with drainage hole. I was worried the self water pot was too moist and causing root rot. I just had to feel better and wanted to check her roots. I used Happy Frog soil with added pumice, charcoal, and orchid bark. Surprisingly, all her roots had quite a few rhizomes. When I got her she barely had any roots yet. (They sold her as a starter plant but what i received was more like new cuttings). Only being repotted 2 days... I'm wondering if she just needs time to recoup or if shes sick and it's too late. She puts out about 3 new leaves at once. As soon as they unfurl she has 3 more new ones starting. She prays.
Ive seen a lot of people mention iron deficiency. Im torn on wether I should give her some Jacks fertilizer 20-20-20 or if it'll be too harsh to fertilize directly after a repot. I question wether a deficiency would cause 1 leaf at a time. It seems more leaves would be yellow at once. But I'm new to all of this 🤷♀️ I'm scared it's some virus. Please help! She's my favorite 😢
Also I run a Small diffuser next to her almost daily for humidity.
The first 3 photos were when I noticed her 1st yellow leaf in old pot. The last 2 photos are today in new pot with another yellow leaf. Hard to see how yellow with the lighting in the pic.